As the name suggests it is the plywood coated with film. Film faced plywood is mainly used for construction and cement casting.
That layer of film is not easy to be bonded with cement. Building templates is used in the construction site, mainly used in the cast of concrete materials, and they are divided into wood template, steel template, bamboo template, pressing template, etc..
Plywood is rotary-cut by log or sliced into thin wood by batten, and then glued to the three or more than three layers of thin sheet by adhesive.
Usually odd numbered template is used, and the fiber direction of the adjacent layers of the single plate is vertically arranged and glued together.
Therefore, there are three-ply, five-ply, seven-ply, and other odd numbered layers of plywood.
The two things are totally different.
The advantages of film mulching template: large area.
The maximum width is 2440*1220,915*1830mm, which reduced joint numbers, and improved the work efficiency of formwork.
Do not warp, no deformation, no cracking, good water resistance, high turnover.
Easy demoulding, only 1/7 of the steel mould.
Light weight:
It is more easy to be used in high-rise building and bridge construction.
Use frequency:
When properly stored and used, it can be used more than 12 times.
Concrete pouring:
Pouring surface is smooth and beautiful, leaving out twice plastering of walls, and it can be decorated directly which reduced 30% of duration.
Corrosion resistance:
Won't pollut concrete surface.
Good thermal insulation:
Conducive to winter construction, and can be used as bending plane template.
Good performance in construction:
Nails, saws, drilling and other properties are better than bamboo plywood. Small steel plate needs to be processed into template of various shapes according to construction.
It is often said that the building templates is thefilm mulching plywood produced by plywood factory.
In fact, this statement is not accurate.
Film faced plywood (film mulching plywood) is just one of various building template - building template ≠ film mulching plywood.
With the development of modern architecture, the cast in place concrete structure is widely used in the engineering construction.
Correspondingly, the manufacturing quality and design level of building templates system is also rapidly improved and developed.
The types of building templates are also increasing.
The building template includes steel template, bamboo template or even plastic template.
Bamboo template includes bamboo template (i.e. bamboo plywood) and wood template.
Wood template does not only include film mulching plywood, but also includes ordinary plywood template, three-ply template (is also a kind of template).
Here the "three-ply wood" is not the "three plywood".
Three plywood is generally 2.7~3.6mm thick, while the thickness of "three-ply wood (template)" can reach up to 18mm.
the usage of template in three-ply wood is much less than that in plywood.
Currently most engineering templates choose bamboo plywood template, among which plywood templates are used more than 50%.
Bamboo plywood belongs to special high-grade template.
If the project is large, and requires high quality, bamboo plywood is also a good choice.
But the bamboo plywood costs higher, but the strength is bigger, and can be repeatedly used.
However, the most widely used templates are still plywood templates.
I often see a pile of plywood template beside construction in process in the city.
A lot of small and medium sized projects are now using plywood template with no film.
Those projects who require high quality use clean water template - black or brown film mulching plywood.